(v) :
to make deep or deeper; to increase the depth of; to sink lower; as, to deepen a well or a channel; to make darker or more intense; to darken; as, the event deepened the prevailing gloom
(v) :
to make deep or deeper; to increase the depth of; to sink lower; as, to deepen a well or a channel; to make darker or more intense; to darken; as, the event deepened the prevailing gloom